Apparatus for removing wrappings from rods



Oct. 25, 1955 D. F. THOMPSON ETAL 2,721,654

APPARATUS FOR REMOVING WRAPPINGS FROM RODS Filed Dec. 5, 1951 m l a x Z 5 L 3 M f z lll llll I l I r\\\: M k F? a x/ w u A u n d 1: A n lllvil A" ;/\Z at 1|.

INVENTORS.

m. a. f 5 W 7. H 4 .2 a d pzww United States Patent "ce APPARATUS FOR REMOVIlgIG WRAPPIN GS FROM ROD Dale F. Thompson and Earl L. McMullin, Hastings, Mich., assignors to Orchard Industries, Inc., Detroit, Mich., a corporation of Michigan Application December 3, 1951, Serial No. 259,626

2 Claims. (Cl. 2092) The present invention relates to an improved apparatus for removing thin wrappings from rods and more specifically to such an improved apparatus for removing cellophane-type wrappings from plastic rods.

In some processes of manufacturing plastic rods, the rods are wrapped in a cellophane-type material during the curing of the plastic. When this is done, after the curing has been completed, it is difficult to remove the wrapping from the rod.

It is an object of the present invention to provide an improved apparatus for removing wrappings from rods, which is simple in design, economical of manufacture and reliable and efficient in operation.

Another object of the present invention is to provide an improved apparatus of the above mentioned type which accumulates the removed wrappings in a trap.

Other and more detailed objects of the present invention will be apparent to those skilled in the art from a consideration of the following specification, the appended claims and the accompanying drawing wherein:

Figure 1 is a broken elevational view partly in section, showing an apparatus embodying the present invention;

Figure 2 is an enlarged sectional view of the structure shown in Figure 1 taken substantially along the line 22 of Figure 1;

Figure 3 is a broken elevational view of a tapered tubular rod with a wrapping on the rod;

Figure 4 is a sectional view of the rod illustrated in Figure 3, taken along the line 4-4 thereof; and,

Figure 5 is a sectional view similar to Figure 4 showing the rod with the wrapping removed.

Referring to the drawing, the improved apparatus of the present invention generally comprises a jacket generally indicated at defining a wrapping removing chamber 12, and a trap 14 connected at one end of the jacket 10 for receiving therefrom the wrappings removed from the rods in the chamber 12. In the preferred embodiment illustrated, the jacket 10 includes an inclined tube 16 defining the chamber 12 and having an elbow 18 secured to its lower end and turned downwardly through which the removed wrappings are discharged into the trap 14.

At its opposite or upper end the tube 16 carries an annular nozzle fitting generally indicated at 20 and is supported adjacent the fitting 20 by means of a suitable supporting frame 22. Referring to Figure 2, the annular fitting 20 comprises an outer sleeve 24 secured to the end of the tube 16 as by the weld indicated at 26, and provided with an annular recess 28 formed in its inner sur face. The outer sleeve 24 carries an inner sleeve 30 mounted therein and which may have a press fit therewith. The inner sleeve 30 has a conical surface 32 at its inner end through which open a plurality of passages 34 2,721,654 Patented Oct. 25,1955

which are arranged to lie in the surface of a cone coaxial with the sleeve 30 and direct jets of fluid toward the apex of the cone. These passages 34 open through the outer cylindrical surface of the sleeve 30 in position to communicate with the annular recess 28 in the outer ring 25. A conduit 36 is connected to the outer ring 24 and supplies fluid under pressure to the annular recess 28.

In the preferred embodiment illustrated the trap 14 comprises a conventional grease drum 38 having a top 40 removably secured thereto by a clamping band 42. The cover 40 is modified for the present use by providing a first aperture 44 adapted to receive and closely fit the lower end of the elbow 18, and a second aperture 46 in which an upwardly extending outlet conduit 48 is mounted. This conduit 48 is telescopically received in a conduit represented at 50. The cover 40 is provided with a handle 52 to facilitate removal of the cover during the changing of the drums 38 when the trap 14 becomes filled with removed wrappings. This changing of the drums 38 is accomplished by lifting the elbow 18 from the aperture 44, releasing and removing the clamping band 42, and raising the cover 40 by means of the handle 52 to telescope the outlet conduit 48 upwardly into the conduit 50. An empty drum 38 may then be placed under the cover 40 and the latter lowered into position on the empty drum 38 and secured in place by the band 42.

The illustration in Figures 3, 4 and 5 of the tapered rod 54 and the thin wrapping 56 is intended for illustrative purposes only and it will be appreciated that the apparatus of the present invention may be used for removing awide variety of wrappings from rods of numerous types, materials and shapes.

As illustrated in Figure 1 of the drawing, the size of the apparatus of the present invention may be such that several rods may be gripped by hand and the wrappings removed from all of them at the same time by inserting them through the nozzle of the apparatus and into the chamber 12.

It will be appreciated by those skilled in the art that numerous modifications and changes may be made in the above described apparatus without departing from the spirit of the present invention.

What is claimed is:

1. An apparatus for removing a thin wrapping from a rod comprising means defining an elongated chamber open at both ends and adapted to receive a portion of said rod, means for directing fluid against said portion of said rod for removing said wrapping from said portion and carrying the removed wrapping from said chamber through one end thereof, a trap for collecting the removed wrappings disposed adjacent said one end of said chamber and comprising an open top container, a cover for said container having an aperture therethrough, a fitting mounted on said first named means connecting said one end of said chamber to the interior of said container through said aperture in said cover, and means for pro viding an outlet for said fluid from the interior of said container through said cover, said cover being removable from said container to permit replacement thereof by an empty container, and said last named means including telescoping parts facilitating said removal of said cover.

2. An apparatus for removing a thin wrapping from a rod comprising means defining an elongated chamber open at both ends and adapted to receive a portion of said rod, means mounted on said means at one end of said chamber for directing a plurality of jets of fluid into said chamber with a component therealong, said last named means being adapted for passage of said portion of said rod therethrough into said chamber, a trap for collecting said wrappings and comprising an open top container, a cover for said container, a fitting connecting the other end of said chamber to the interior of said container through said cover, said fitting having an internal cross sectional area approximately equal to that of said chamber, and means for providing an outlet for said fluid from the interior of said container through said cover, said cover being removable from said container to permit replacement thereof by an empty container.

References Cited in the file of this patent UNITED STATES PATENTS Bubser Feb. 28, 1899 Greenfield Jan. 12, 1915 Carline Dec. 6, 1927 Hemmeter July 27, 1948 Dudley Sept. 30, 1952 Murdoch Feb. 17, 1953 

